1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
|
// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
//
using Microsoft.Xunit.Performance;
using System;
using System.Diagnostics;
using Xunit;
[assembly: OptimizeForBenchmarks]
[assembly: MeasureInstructionsRetired]
namespace SIMD
{
public static class ConsoleMandel
{
private const int Pass = 100;
private const int Fail = -1;
private static bool s_silent = false;
private static void DoNothing(int x, int y, int count) { }
private static void DrawDot(int x, int y, int count)
{
if (x == 0)
Console.WriteLine();
Console.Write((count < 1000) ? ' ' : '*');
}
private static Algorithms.FractalRenderer.Render GetRenderer(Action<int, int, int> draw, int which)
{
return Algorithms.FractalRenderer.SelectRender(draw, Abort, IsVector(which), IsDouble(which), IsMulti(which), UsesADT(which), !UseIntTypes(which));
}
private static bool Abort() { return false; }
private static bool UseIntTypes(int num) { return (num & 8) == 0; }
private static bool IsVector(int num) { return num > 7; }
private static bool IsDouble(int num) { return (num & 4) != 0; }
private static bool IsMulti(int num) { return (num & 2) != 0; }
private static bool UsesADT(int num) { return (num & 1) != 0; }
private static void PrintDescription(int i)
{
Console.WriteLine("{0}: {1} {2}-Precision {3}Threaded using {4} and {5} int types", i,
IsVector(i) ? "Vector" : "Scalar",
IsDouble(i) ? "Double" : "Single",
IsMulti(i) ? "Multi" : "Single",
UsesADT(i) ? "ADT" : "Raw Values",
UseIntTypes(i) ? "using" : "not using any");
}
private static void PrintUsage()
{
Console.WriteLine("Usage:\n ConsoleMandel [0-23] -[bench #] where # is the number of iterations.");
for (int i = 0; i < 24; i++)
{
PrintDescription(i);
}
Console.WriteLine("The numeric argument selects the implementation number;");
Console.WriteLine("If not specified, all are run.");
Console.WriteLine("In non-benchmark mode, dump a text view of the Mandelbrot set.");
Console.WriteLine("In benchmark mode, a larger set is computed but nothing is dumped.");
}
private static int Main(string[] args)
{
try
{
int which = -1;
bool verbose = false;
bool bench = false;
int iters = 1;
int argNum = 0;
while (argNum < args.Length)
{
if (args[argNum].ToUpperInvariant() == "-BENCH")
{
bench = true;
if ((args.Length <= (argNum + 1)) || !Int32.TryParse(args[argNum + 1], out iters))
{
iters = 5;
}
argNum++;
}
else if (args[argNum].ToUpperInvariant() == "-V")
{
verbose = true;
}
else if (args[argNum].ToUpperInvariant() == "-S")
{
s_silent = true;
}
else if (!Int32.TryParse(args[argNum], out which))
{
PrintUsage();
return Fail;
}
argNum++;
}
if (bench)
{
Bench(iters, which);
return Pass;
}
if (which == -1)
{
PrintUsage();
return Pass;
}
if (verbose)
{
PrintDescription(which);
}
if (IsVector(which))
{
if (verbose)
{
Console.WriteLine(" Vector Count is {0}", IsDouble(which) ? System.Numerics.Vector<Double>.Count : System.Numerics.Vector<Single>.Count);
Console.WriteLine(" {0} Accelerated.", System.Numerics.Vector.IsHardwareAccelerated ? "IS" : "IS NOT");
}
}
var render = GetRenderer(DrawDot, which);
render(-1.5f, .5f, -1f, 1f, 2.0f / 60.0f);
return Pass;
}
catch (System.Exception)
{
return Fail;
}
}
public static void Bench(int iters, int which)
{
float XC = -1.248f;
float YC = -.0362f;
float Range = .001f;
float xmin = XC - Range;
float xmax = XC + Range;
float ymin = YC - Range;
float ymax = YC + Range;
float step = Range / 1000f; // This will render one million pixels
float warm = Range / 100f; // To warm up, just render 10000 pixels :-)
Algorithms.FractalRenderer.Render[] renderers = new Algorithms.FractalRenderer.Render[24];
// Warm up each renderer
if (!s_silent)
{
Console.WriteLine("Warming up...");
}
Stopwatch timer = new Stopwatch();
int firstRenderer = (which == -1) ? 0 : which;
int lastRenderer = (which == -1) ? (renderers.Length - 1) : which;
for (int i = firstRenderer; i <= lastRenderer; i++)
{
renderers[i] = GetRenderer(DoNothing, i);
timer.Restart();
renderers[i](xmin, xmax, ymin, ymax, warm);
timer.Stop();
if (!s_silent)
{
Console.WriteLine("{0}{1}{2}{3}{4} Complete [{5} ms]",
UseIntTypes(i) ? "IntBV " : "Strict ",
IsVector(i) ? "Vector " : "Scalar ",
IsDouble(i) ? "Double " : "Single ",
UsesADT(i) ? "ADT " : "Raw ",
IsMulti(i) ? "Multi " : "Single ",
timer.ElapsedMilliseconds);
}
}
if (!s_silent)
{
Console.WriteLine(" Run Type : Min Max Average Std-Dev");
}
for (int i = firstRenderer; i <= lastRenderer; i++)
{
long totalTime = 0;
long min = long.MaxValue;
long max = long.MinValue;
for (int count = 0; count < iters; count++)
{
timer.Restart();
renderers[i](xmin, xmax, ymin, ymax, step);
timer.Stop();
long time = timer.ElapsedMilliseconds;
max = Math.Max(time, max);
min = Math.Min(time, min);
totalTime += time;
}
double avg = totalTime / (double)iters;
double stdDev = Math.Sqrt(totalTime / (iters - 1.0)) / avg;
if (s_silent)
{
Console.WriteLine("Average: {0,0:0.0}", avg);
}
else
{
Console.WriteLine("{0}{1}{2}{3}{4}: {5,8} {6,8} {7,10:0.0} {8,10:P}",
UseIntTypes(i) ? "IntBV " : "Strict ",
IsVector(i) ? "Vector " : "Scalar ",
IsDouble(i) ? "Double " : "Single ",
UsesADT(i) ? "ADT " : "Raw ",
IsMulti(i) ? "Multi " : "Single ",
min, max, avg, stdDev);
}
}
}
public static void XBench(int iters, int which)
{
float XC = -1.248f;
float YC = -.0362f;
float Range = .001f;
float xmin = XC - Range;
float xmax = XC + Range;
float ymin = YC - Range;
float ymax = YC + Range;
float step = Range / 100f;
Algorithms.FractalRenderer.Render renderer = GetRenderer(DoNothing, which);
for (int count = 0; count < iters; count++)
{
renderer(xmin, xmax, ymin, ymax, step);
}
}
[Benchmark]
public static void VectorFloatSinglethreadRawNoInt()
{
foreach (var iteration in Benchmark.Iterations)
{
using (iteration.StartMeasurement())
{
XBench(10, 8);
}
}
}
[Benchmark]
public static void VectorFloatSinglethreadADTNoInt()
{
foreach (var iteration in Benchmark.Iterations)
{
using (iteration.StartMeasurement())
{
XBench(10, 9);
}
}
}
}
}
|
